Basically, I was just wondering how skewed the factory numbers were. 250 and the rear wheels, tells me they're probably good numbers. Getting 250 to the rear wheels is nothing to skoff at either. I suspect, the earlier engines won't pull off quite as good of numbers, but the 291 hp models only best them over 5000 rpm. The 270 hp models more than make up for the top end hp, with off idle torque. A good tune, free flowing exhaust, and modified air intake, should push either engine over the 300 mark, the way I see it.

Now, 510 hp at the wheels is totally cool. What is that 575-600 at the flywheel? I'm assuming that's with pump gas too. For most people, that's probably a little excessive, but I'm guessing you're never satisfied. Given those numbers though, if someone were to turbo a stock motor, I'm guessing 400 hp at 5-7 psi boost is pretty relistic.

Anyway, good job guys!

EFI-DIY> I like you're quote at the end of your post. It's too bad our politicians don't think think that way.